both scared of cats.
Both.
They were both dictators and they both invaded Russia.
Hitler because he killed people of his own country wheras Napoleon just made things difficult. I think they are both evil, but Adolf Hitler was more evil than Napoleon Bonaparte.
They probably shared some personality traits and both were known as strong leaders within their countries. Both wanted to invade the UK. Napoleon was a genuine General and Hitler was a genuine despot.
The Winter weather.
Both Napoleon and Adolf Hitler made the mistake of taking on the might of Russia, and both were defeated mainly by the Russia winter. Their final defeats came about because other countries came together to form an allied force and fight against Napoleon and Hitler.
they both were communist
They were both Fascists
Answer The military mistake that they both had in common was they tried to conquer Russia. Both did not realize the magnitude of this objective. Russia is a vast area and the troops could not live off of the land. So the logisticallines were extremely long. Most accounts say the Russian winter was the main obstacle. However, when Napoleon started out his campaign, the summer contributed to the loss of many of his horses.
They were both wartime leaders.
They are both men.
Napoleon's biggest mistake was to invade Russia, a mistake Hitler repeated in World War II. In both cases, it was the Russian winter weather that forced both dictators to retreat with great loss of life.